One verse

Srimad Bhagavatam 5.26.6

5.26.6

यत्र ह वाव भगवान् पितृराजो वैवस्वत: स्वविषयं प्रापितेषु स्वपुरुषैर्जन्तुषु सम्परेतेषु यथाकर्मावद्यं दोषमेवानुल्लङ्घितभगवच्छासन: सगणो दमं धारयति ॥ ६ ॥

yatra ha vava bhagavan pitr-rajo vaivasvatah sva-visayam prapitesu sva-purusair jantusu samparetesu yatha-karmavadyam dosam evanullanghita-bhagavac-chasanah sagano damam dharayati.

yatra
where
ha vava
indeed
bhagavan
the most powerful
pitr-rajah
Yamaraja, the king of the pitas
vaivasvatah
the son of the sun-god
sva-visayam
his own kingdom
prapitesu
when caused to reach
sva-purusaih
by his own messengers
jantusu
the human beings
samparetesu
dead
yatha-karma-avadyam
according to how much they have violated the rules and regulations of conditional life
dosam
the fault
eva
certainly
anullanghita-bhagavat-sasanah
who never oversteps the Supreme Personality of Godhead’s order
saganah
along with his followers
damam
punishment
dharayati
executes

The King of the pitas is Yamaraja, the very powerful son of the sun-god. He resides in Pitrloka with his personal assistants and, while abiding by the rules and regulations set down by the Supreme Lord, has his agents, the Yamadutas, bring all the sinful men to him immediately upon their death. After bringing them within his jurisdiction, he properly judges them according to their specific sinful activities and sends them to one of the many hellish planes for suitable punishments.